代码示例:
<html> <head> <title>js 类2</title> <meta charset="utf-8"/> <script type="text/javascript"> function Person(){ } function User(){ } Person.prototype=new User(); User.prototype.t1=function(){alert("来自user t1")}; var p1=new Person(); p1.t1(); //相当于p1.prototype.t1(),prototype=new User(); ------------------------------------------------------------------- function HTTPRequest() { } HTTPRequest.prototype.HTTPGET=function(){ console.log("GET"); } HTTPRequest.prototype.HTTPPOST=function(){ console.log("POST"); } function Register() { } Register.prototype=new HTTPRequest(); //登录 function Login() { } Login.prototype=new HTTPRequest(); //退出 function logout(){ } logout.prototype=new HTTPRequest(); var reg=new Register(); reg.HTTPGET(); reg.HTTPPOST(); </script> </head> <body> </body> </html>